import java.io.*; import java.util.jar.*; try { boolean fooFound = false; boolean barFound = false; JarFile file = new JarFile( new File( basedir, "child2/target/child2-1.0-SNAPSHOT-bin.jar" ) ); JarEntry entry = file.getEntry( "META-INF/services/test.Test" ); if ( entry == null ) { return false; } BufferedReader br = new BufferedReader( new InputStreamReader( file.getInputStream( entry ) ) ); String line = null; while( ( line = br.readLine() ) != null ) { if ( line.equals( "test.Foo" ) ) { fooFound = true; } else if ( line.equals( "test.Bar" ) ) { barFound = true; } if ( fooFound && barFound ) { break; } } if ( !fooFound ) { System.out.println( "Cannot find entry 'test.Foo' in: " + entry.getName() ); } if ( !barFound ) { System.out.println( "Cannot find entry 'test.Bar' in: " + entry.getName() ); } return fooFound && barFound; } catch( IOException e ) { e.printStackTrace(); } return false;